55842368979 has 4 divisors (see below), whose sum is σ = 74456491976. Its totient is φ = 37228245984.

The previous prime is 55842368977. The next prime is 55842369013. The reversal of 55842368979 is 97986324855.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55842368979 - 2¹ = 55842368977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55842368977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9307061494 + ... + 9307061499.

It is an arithmetic number, because the mean of its divisors is an integer number (18614122994).

Almost surely, 2^55842368979 is an apocalyptic number.

55842368979 is a deficient number, since it is larger than the sum of its proper divisors (18614122997).

55842368979 is a wasteful number, since it uses less digits than its factorization.

55842368979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18614122996.

The product of its digits is 130636800, while the sum is 66.

The spelling of 55842368979 in words is "fifty-five billion, eight hundred forty-two million, three hundred sixty-eight thousand, nine hundred seventy-nine".